Box cutter with replaceable blades & Keychain hole

Printer settings:

Layer height: 0.1mm

Vertical shell 3 - Solid layers - Top 3 - Bottom3

Infill: 15% Grid

Skirt: Loops 4 - Skirt height 2 (Only for blades to help them stay on the build plate)

Hardware needed: M212 bolt, washer, lock washer & M23 thread insert

Handle made of PLA+ with blades being PCTG for durability but will wear down over time due to friction

Curved handle for front or side grip with knurls to keep thumb from sliding

Feel free to make changes or suggest your ideas!